Cleaning compound.



- Klo Brewing.

I To all whom it may conoem:

cent. a, newer, or entrance;

ILLINOIS,-ASSIGNOE TO A. G. WACKENREUTER, CHKCAGO, ILLINOIS.

ennnnma comrounn.

Specification of Letters ratent.

Application filed November27, 1911. Serial No. 662,646.

Patented Sept. 1 a, rare;

the it known that I, CARL A. NowAK, a

citizen of the United 'States, residing at centage of carbon tetra chlorid (C61,) in

the form of an emulsion, and containing a very small percentage of water, so that the compound will be in a semi fluid condition whereby the well known cleansing properties of carbon tetra chlorid are enhanced and at the same time the product is in better condition tor packaging and more convenient for use. To this end I emuls ty the carbon tetra chlorid by treating it 1n theprefer-red manner'h'ereinafter described with a solutionv of saponin, thereby producing a cleansing preparation. in the form of an emulsion.

The procedure I prefer to practice for producing my new cleansing compound is the following: I prepare :a solutlon containing about 3.5 per cent. of saponm (C H O which I may make by dissolving the dry saponin in the requisite amount of cold water to produce-the solution of about 3.5%, strength and having a specific gravity of approximately 1.61 at 15; G. H desired '1 may use an infusion of ordinary commercial soap-bark, obtained by boiling the bark in a suficient quantity of water for about one hour, the water being preferably rendered slightly alkaline, as by adding to it about of sodium hydrate, then filtering the infusion and thereafter condensing or diluting. the filtration as may be required to produce an aqueous solution containing about 4 to 5% extract by Weight. After the solution of saponin or the infusion of soap-bark is prepared I add toabout 800 gr. of carbon tetra chlorid about 300 to 400 gr.. of the solution or infusion, and the mixture thus formed is vigorously shaken or agitated in a closed vessel for about, fifteen to forty-five minutes, oruntil a good congealing or emulsification of the carbon tetra chlorid appears. The mixture is then permitted to settle for "from two to four hours, or until it has separated into two strata. The upper stratum will bethe solution or infusion of the saponaceous material weakened bythe amount of saponin taken up by the carbon tetra chlorid, which the saponinwill have emulsified by reason of its colloidal properties, and the emulsifiedcarbon tetra chlorid will form-the lower stra-- tum. The upper stratumis how drawn off leaving the emulsified carbon tetrachlorid in its finished condition. Quantitative analyses of/my composition, to determine the amounts of the, different components thereof, shows as its percentage composition'by weight, the following'result,

giving the maximum and minimum limits between which the' amounts vary:

i Maximum. Minimum. Carbon tetra ohlorld...-.. 98.90% 93.50% Water 6.00% .00 7 Saponin..- 0.50% 0.1 Specific gravity at 15 C 1.60 1.55

The emulsified carbon tetra chlorid, re. sulting from treating carbon tetra chlorid of a thick or coagulated fluid, andi is in a very advantageous form for use, since it may be supplied in colla sible tubes or bottles, and be readily applied to clothing and the like, without waste, for cleansin the same of grease-stains by rubbing, this eing the particular property of the carbon tetra .chlorid constituent. The emulsifying sapo nin, in addition to its action upon .the calbon tetra chlorid will, because it carries.

some moisture with it from the solution,

serve to remove other stains that may not be removable by the carbonvtet-ra chlorid.

'VVhat' I claim as new and desire to secure by [Letters Patent is:

1. The process of compound which consists in thoroughly preparing a cleaning compound which consists in thoroughly.

75 according to my process, is in the condition mixing with carbon tetra chlorid substan tially twice its weight of a. solution of saponin of between 3 and 4% strength whereby the carbon tetra chlorid is emulslfied, and

containing more than 92% earbon tetra chlorid, less than 7 water and less than 1% saponin.

CARL A. NOWAK. In the resence of- A. Tnonmn',

R; A. SCHAEFER. 

